Process for the preparation of glycol aldehyde which comprises reacting formaldehyde with hydrogen and carbon monoxide in the presence of a catalyst system derived from a rhodium-containing catalyst precursor and/or a cobalt-containing catalyst precursor and an acid having a pKa ≥ 3.5 and a promoter XR3, X representing P, As or Sb and each R representing a (dis)similar substituted or unsubstituted hydrocarbyl group; at least one R representing an aryl group containing one or more electron-withdrawing groups.
Process for the production of ethylene glycol from glycol aldehyde thus prepared.
乙二醇醛的制备工艺,该工艺包括在由含
铑催化剂前体和/或含
钴催化剂前体和pKa≥3.5的酸及
促进剂XR3组成的催化剂体系存在下,使
甲醛与
氢气和
一氧化碳反应,X代表P、As或Sb,每个R代表一个(不)类似的取代或未取代的烃基;至少一个R代表一个含有一个或多个抽电子基团的芳基。
由由此制备的
乙二醇醛生产
乙二醇的工艺。